Spin currents in metallic nanostructures

Author: mval

August undefined, 2024

Web2 days ago · Apr 13, 2024: Hybrid laser pulses enable ultrafast control of spin and valley currents (Nanowerk News) The flow of matter, from large-scale water currents to the microscopic flow of electric charge, is fundamental to the infrastructure of modern society.Scientists are constantly seeking ways to control quantum aspects of matter, … WebDec 19, 2012 · A new kind of lateral spin-valve consisting of ferromagnetic nanopillars formed on a uniform nonmagnetic film has been fabricated as follows. First, 200-nm-thick Cu and 20-nm-thick Py films were deposited by electron-beam evaporations on a thermally oxidized Si substrate at a base pressure of 4×10 −9 Torr.

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WebSpin Currents in Metallic Nanostructures; Explicit Calculations F. S. M. Guimar~aes (a), A. T. Costa , R. B. Muniz and D. L. Mills(b) (a) Instituto de F sica ... WebAbstract. We review recent studies of the shot noise of spin-polarized charge currents and pure spin currents in multiterminal semiconductor nanostructures, while focusing on the eﬀects brought by the intrinsic Rashba spin-orbit (SO) coupling and/or extrinsic SO scattering oﬀ impurities in two-dimensional electron gas (2DEG) based devices. popcorn time ios 11

Hybrid laser pulses enable ultrafast control of spin and valley currents

WebSpintronics is an emerging form of electronics based on the electrons' spin degree of freedom for which materials with robust half-metallic ferromagnet (HMF) character are very attractive. Here we determine the structural stability, electronic, magnetic, and mechanical properties of the half-Heusler (hH) compound CoFeGe, in particular also in ... WebAug 2, 2011 · DOE PAGES ® Journal Article: Spin currents in metallic nanostructures: Explicit calculations Title: Spin currents in metallic nanostructures: Explicit calculations … Webaspects for spin injection, spin transport and spin detection in magnetic nanostructures containing normal conducting metals by focusing on the spin accumulation and spin current in a nonlocal spin device of F1/N/F2 structure, where F1 is a spin injector and F2 a spin detector. We derive basic spin-dependent transport equations for the ... sharepoint online workflow

Spin Currents in Metallic Nanostructures; Explicit …

Large pure spin current generation in metallic nanostructures

WebDec 19, 2012 · If the pure spin current from two or more ferromagnetic injectors can be superimposed, one obtains a giant pure spin current, which is unachievable in the … WebLarge pure spin current generation in metallic nanostructures 357 Fig. 2 (a) Concept for multi-terminal spin injection and SEM image of the multi-terminal spin injection device. (b) … sharepoint online word cloudWebAug 2, 2011 · In ultrathin ferromagnets deposited on metallic substrates, excitation of precessional motion of the spins produces a spin current in the substrate that transports … sharepoint online windows explorer view

"WebSep 5, 2011 · A pure spin current, i.e., a flow of angular momentum without accompanying net charge current, is a key ingredient in the field of spintronics. In this thesis, we … " - Spin currents in metallic nanostructures

Spin currents in metallic nanostructures

WebJan 8, 2015 · This plasmon-induced spin current is converted into a d.c. charge current J C due to the inverse spin Hall effect (ISHE) 14,26,27 in the Pt layer owing to the strong spin … WebSep 8, 2024 · We provide quantitative estimates of equilibrium spin currents for several systems, specifically metallic surfaces presenting Rashba-like surface states, nitride semiconducting nanostructures and bulk materials, such as the prototypical gyrotropic medium tellurium.

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WebJan 1, 2011 · In nonmagnetic metals, the spin current flows with the non-equilibrium spin polarization, the magnitude of which decays via spin relaxation. The length scale over … WebHspin = ∑i,j Jij Si ⋅ Sj . Invariant under simultaneous rotations of the spins. With spin orbit coupling, exchange may be anisotropic, depending on orientation relative to the crystal axes, and the line joining the spins. In simplest case may have Ising-like or XY-like symmetry Hspin = ∑i,j [Jijz Siz Sjz + Jijx (Six Sjx + Siy Sjy) ]

WebThe arrows indicate the direction of the magnetic field sweep. - "Spin Currents in Metallic Nanostructures" Figure 4.15: RNL versus magnetic field for L = 200 nm of sample Au/50 nm. (a) No substantial change in RNL could be observed for fields up to ±14 T. In particular, RNL < 0 is found for the entire studied field range. WebOct 2, 2012 · In p-type semiconductors (Si, Ge, GaAs,…), spin current is induced by the external electric field. i: spin direction j: current direction k: electric field (Murakami, Nagaosa, Zhang, Science (2003)) :even under time reversal = reactive response (dissipationless) • Nonzero in nonmagnetic materials. Cf.

WebMar 10, 2014 · Download Citation Efficient control of pure spin currents in metallic nanostructures Pure spin current without accompanying the charge current is expected … WebJan 1, 2011 · In nonmagnetic metals, the spin current flows with the non-equilibrium spin polarization, the magnitude of which decays via spin relaxation. The length scale over which spin current flows is known as the spin diffusion length typically in a …

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WebPhysics. A pure spin current, i.e., a flow of angular momentum without accompanying net charge current, is a key ingredient in the field of spintronics. In this thesis, we … sharepoint online workflow 2010WebOct 19, 2024 · As a general framework for deriving the coupled spin dependent currents in tunnel junctions (and nanostructures in general) driven by thermoelectric forces X_i, like magnetization–, temperature– or chemical potential–gradients one may use Onsager theory, see Kubo, Landau, de Groot et al. [ 9 ]. sharepoint online リスト faqWebMay 1, 2012 · Abstract and Figures Pure spin current corresponds to the flow of spin angular momentum without associating any net charge current, and possesses potential to be incorporated in special... sharepoint online 通知WebApr 13, 2024 · Typical examples of metallic nanostructures that use the SHE (ISHE) for spin injection (detection) are the lateral spin valves developed to quantify the SHE via non-local … sharepoint online workflow vs power automateWebDec 2, 2011 · In ultrathin ferromagnets deposited on metallic substrates, excitation of precessional motion of the spins produces a spin current in the substrate that transports … sharepoint online workflow designerWebNanomaterials have emerged as an amazing class of materials that consists of a broad spectrum of examples with at least one dimension in the range of 1 to 100 nm. … sharepoint online windows explorerWebJan 8, 2015 · The research field of plasmonics thus integrates nano-photonics with electronics. In contrast, electronics is also entering a new era of spintronics, where spin currents play a central role in... sharepoint only people in your organization